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What does File.readlines($file)[z] mean in ruby?


Calling shell commands from RubyA concise explanation of nil v. empty v. blank in Ruby on RailsHow to write a switch statement in RubyWhat does ||= (or-equals) mean in Ruby?How to convert a string to lower or upper case in RubyWhat does map(&:name) mean in Ruby?What does %w(array) mean?Check if a value exists in an array in RubyWhat does <![CDATA[]]> in XML mean?What is attr_accessor in Ruby?













-2















I am study XXE, and I clone the XXEinjector int github: https://github.com/enjoiz/XXEinjector, but I got a problem, there is a piece of code, break if File.readlines($file)[z].chomp.empty?, I really can't understand what does this mean, where does the [z] means??










share|improve this question


























    -2















    I am study XXE, and I clone the XXEinjector int github: https://github.com/enjoiz/XXEinjector, but I got a problem, there is a piece of code, break if File.readlines($file)[z].chomp.empty?, I really can't understand what does this mean, where does the [z] means??










    share|improve this question
























      -2












      -2








      -2








      I am study XXE, and I clone the XXEinjector int github: https://github.com/enjoiz/XXEinjector, but I got a problem, there is a piece of code, break if File.readlines($file)[z].chomp.empty?, I really can't understand what does this mean, where does the [z] means??










      share|improve this question














      I am study XXE, and I clone the XXEinjector int github: https://github.com/enjoiz/XXEinjector, but I got a problem, there is a piece of code, break if File.readlines($file)[z].chomp.empty?, I really can't understand what does this mean, where does the [z] means??







      ruby xml






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked Mar 21 at 15:57









      anonymousanonymous

      306




      306






















          1 Answer
          1






          active

          oldest

          votes


















          4














          File#readlines returns an array of lines and z in an index in this array.



          It’s initialized here and is altered here.




          Sidenote: the code there is absolutely not ruby idiomatic and has tons of code smell. I strongly discourage you to study ruby by examining this code.






          share|improve this answer


















          • 2





            Agree, the sidenote is very important in this context.

            – spickermann
            Mar 21 at 16:15











          • Very well,in fact, I'm not from an English country, so I want to ask what does "tons of code smell" mean??

            – anonymous
            Mar 22 at 0:53











          • Basically it means every single line of code done in counter-idiomatic way.

            – Aleksei Matiushkin
            Mar 22 at 3:18










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          1 Answer
          1






          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          4














          File#readlines returns an array of lines and z in an index in this array.



          It’s initialized here and is altered here.




          Sidenote: the code there is absolutely not ruby idiomatic and has tons of code smell. I strongly discourage you to study ruby by examining this code.






          share|improve this answer


















          • 2





            Agree, the sidenote is very important in this context.

            – spickermann
            Mar 21 at 16:15











          • Very well,in fact, I'm not from an English country, so I want to ask what does "tons of code smell" mean??

            – anonymous
            Mar 22 at 0:53











          • Basically it means every single line of code done in counter-idiomatic way.

            – Aleksei Matiushkin
            Mar 22 at 3:18















          4














          File#readlines returns an array of lines and z in an index in this array.



          It’s initialized here and is altered here.




          Sidenote: the code there is absolutely not ruby idiomatic and has tons of code smell. I strongly discourage you to study ruby by examining this code.






          share|improve this answer


















          • 2





            Agree, the sidenote is very important in this context.

            – spickermann
            Mar 21 at 16:15











          • Very well,in fact, I'm not from an English country, so I want to ask what does "tons of code smell" mean??

            – anonymous
            Mar 22 at 0:53











          • Basically it means every single line of code done in counter-idiomatic way.

            – Aleksei Matiushkin
            Mar 22 at 3:18













          4












          4








          4







          File#readlines returns an array of lines and z in an index in this array.



          It’s initialized here and is altered here.




          Sidenote: the code there is absolutely not ruby idiomatic and has tons of code smell. I strongly discourage you to study ruby by examining this code.






          share|improve this answer













          File#readlines returns an array of lines and z in an index in this array.



          It’s initialized here and is altered here.




          Sidenote: the code there is absolutely not ruby idiomatic and has tons of code smell. I strongly discourage you to study ruby by examining this code.







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Mar 21 at 16:02









          Aleksei MatiushkinAleksei Matiushkin

          84.4k95795




          84.4k95795







          • 2





            Agree, the sidenote is very important in this context.

            – spickermann
            Mar 21 at 16:15











          • Very well,in fact, I'm not from an English country, so I want to ask what does "tons of code smell" mean??

            – anonymous
            Mar 22 at 0:53











          • Basically it means every single line of code done in counter-idiomatic way.

            – Aleksei Matiushkin
            Mar 22 at 3:18












          • 2





            Agree, the sidenote is very important in this context.

            – spickermann
            Mar 21 at 16:15











          • Very well,in fact, I'm not from an English country, so I want to ask what does "tons of code smell" mean??

            – anonymous
            Mar 22 at 0:53











          • Basically it means every single line of code done in counter-idiomatic way.

            – Aleksei Matiushkin
            Mar 22 at 3:18







          2




          2





          Agree, the sidenote is very important in this context.

          – spickermann
          Mar 21 at 16:15





          Agree, the sidenote is very important in this context.

          – spickermann
          Mar 21 at 16:15













          Very well,in fact, I'm not from an English country, so I want to ask what does "tons of code smell" mean??

          – anonymous
          Mar 22 at 0:53





          Very well,in fact, I'm not from an English country, so I want to ask what does "tons of code smell" mean??

          – anonymous
          Mar 22 at 0:53













          Basically it means every single line of code done in counter-idiomatic way.

          – Aleksei Matiushkin
          Mar 22 at 3:18





          Basically it means every single line of code done in counter-idiomatic way.

          – Aleksei Matiushkin
          Mar 22 at 3:18



















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